Means for arresting amusement cabs



Oct. 12, 1937. c. H. HARRISON MEANS FOR ARRESTING AMUSEMENT CARS 2 Sheets-Sheet 1 Filed Jan. 1937 Z 3M4) ha /mm rj Oct. 12, 1937. HARRlsoN. 2,095,413

MEANS FOR ARRESTING AMUSEMENT CARS Filed Jan. 6, 1937 2 Sheets-Sheet 2 Patented Oct. 12 1937 PATIENT OFFICE I 2,095,413 MEANS FOR Aanns'rmo AMUSEMENT cans Charles Henry Harrison, London, England Application January 6, 1937, Serial No. 119,337

In Great Britain February 6, 1935 2 Claims. (01. 1- -60) The invention relates to means for arresting individually driven motor. propelled amusement passenger carrying cars on their track and has for its object to provide automatic means oper- 5 able insuch manner that the cars may be stopped at will by the attendant from a position othe than on the track.

In its broadest aspects, the-invention contemplates the provision of a manually operable trip 10 to be located in the trackway in such manner that an attendant may elevate said trip" to cause it to lie in the path of movement of a depending control member carried by a car, the movement of which is to be arrested. When the control 10 member strikes the trip, suitable control mechanism, hereinafter described, is actuatedto bring the car to a stop. The mechanism, after being once actuated, must be manually reset before the car can be again set in operation. In the accompanying drawings:

Figure l is a fragmentary side elevation of a car and its associated track trip;

Fig. la is an enlarged side view of the control mechanism of the car; Fig. 2 is a front view of the mechanism illustrated in Fig. 1a; V Fig. 3 is a view partly in section and partly in elevation of a pneumatically operated tripmechanism; 7 Fig. 4 is a sectional view ofa two-way valve,

hereinafter described;

Fig. 5 is a sectional view of the inflatable trip in its deflated condition;

Fig. 6 is a view partly in section and partly in elevation showing the trip strip of Fig. 5 inflated and with a car approaching the same, and

Fig. '7 is a sectional view of a modified form of inflatable trip strip.

Like numerals designate corresponding parts 4o throughout the several figures of the drawings.

Referring now to Fig. 1, B designates a trackway upon which a car E is adapted to travel.

A manually operable lever D serves, when manipulated by an attendant, to raise, or lower a yield- 455 able trip A, the body portion of which is located in a trough C, below the level of the trackway.

When elevated, the trip A lies in'the path of movement of acontrol lever I and when this lever is swung rearwardly, under its engagement with cally propelled vehicle, movement of member I could be utilized to control a conventional type of switch to cut off the electric current. However, since the majority of motor vehicles are now propelled by internal combustion motors, I have 5 chosen to illustrate the invention as being applied to a car of that type. V

Referring now particularly to Figs la and 2, the numerals I and 2 designate a pair of cams. The cam I is mounted upon the conventional accelera- 1O tor shaft 3 of the engine. A crank 3a., upon the end of this shaft, and a manually operable rod 32) provide means for imparting partial turning movement to shaft 3 to cause the cam I to thrust downwardly upon the head I3 of the fuel control 15 valve I2 oithe engine. These parts are of conventional form. In carrying out the invention, I loosely mount upon shaft 3 a hub or sleeve 4, by which the second cam, 2, is carried. This second cam over- 20 lies the head I3, and the sleeve 4 carries a crank arm 5 .to which the upper end of a rod 6 is pivoted.

The upper end of a spring I I is connected to the arm 5, and the lower end of this spring is connected to a part of the car frame indicated at E 5 Thus it will be seen that movement of the valve I2 may be effected by manipulation of rod 31) independently of cam 2 and its associated parts, and it will also be seen that the spring II is 'constantly tending to move cam 2 in such direction 30 as to cause it to thrust downwardly upon'the head I 3 and thus bring the motor to a stop.

This tendency of the spring II to move the cam 2 as described is resisted by the rod 6, the lower end of which is normally supported upon a 35 transverse extension In of the member I. This member I is pivoted at 8 upon a bracket 9 of the car frame E When the member 'I strikes the trip, its portion II] is moved from beneath the lower end of the rod '6, and said rod is caused to 40 snap downwardly under the influence of spring I I. This turns cam 2 to cause it to thrust downwardly upon the head I3.

The motor is thereupon rendered inoperative with respect to the car, as previously described, and it cannot again be brought into operation until the attendant, by grasping a handle I5 of rod 6, elevates said rod enough to permit extension III to be positioned beneath the lower end of rod 6 to again support the same in elevated'position against the action of spring II.

In the pneumatic form of construction. shown in Figs. 3 to 7, an inflatable track member 29 arranged across the track B, is connected to any suitable form of pump apparatus such as 2I or a compressed air cylinder through a two way cock 22 and a detachable connection 23. When the member 20 is inflated as seen in Fig. 5 it stands above the track and as the contact member l of the vehicle comes in contact therewith, the mechanism on the vehicle is operated as previously explained to bring the car to a standstill. When the cars have been loaded with fresh passengers, the air in the inflated member 25 is allowed to exhaust itself through the twoway cook 22 as will be easily understood, and said inflatable member 2%? lies in its recess 24 out of the way of the contact member 7. Such inflatable member 20 is held in place by lugs 25 provided thereon and secured if desired to the track or to the sides of the recess 24.

In the modification shown at Fig. 7 the inflatable member 20 serves to inflate an outer casing 2'! of stouter material capable of greater wear resistance, the edges 28 of the latter being appropriately secured beneath the track B such as by the flanges 26.

I claim:

1. The combination with a car and a motor thereon, of controlling mechanism for said motor comprising a control valve, said valve including a longitudinally movable head, a pair of cams over lying said head, an oscillatory accelerator shaft upon which one of said cams is mounted, manually operable means for moving said shaft and cam for the manual control of said valve, a sleeve loosely mounted upon the accelerator shaft, by which the other of said cams is carried, a crank arm upon said sleeve, means tending to turn said crank arm in one direction, a rod pivotally connected to said arm and resisting the movement of said means, a pivoted control member normally under-lying said rod but adapted to be swung from beneath said rod when the control member engages an obstruction upon the track, and a manually operable trip positioned to constitute such obstruction.

2. The combination with a trackway and a car adapted to travel thereon, of an internal combustion motor for propelling said car, a throttle valve for the motor, a cam overlying said motor and adapted when turned to actuate said valve, a crank connected to the cam, a spring engaged with said cam and with a part of the car frame, said spring tending to turn the cam in a direction to actuate said valve, a control member comprising a swingingly mounted part pivoted to the car frame adjacent the lower end of said rod and comprising an extension adapted to underlie the lower end of said rod, as and for the purposes set forth.

CHARLES HENRY HARRISON. 

